1 - star office. pretty sure it's a precompiled somethign or other so:
if it's a .bin just run it.
if it's a tar.gz of something, de compress it and run whatever's inside it, possibly 'make' but it's likely to have it's own structure init, otehr than the standard system, as it's closed source etc...
if it's an rpm, use rpm-i staroffice-vffdvdvgsff.rpm
2 - sorry, that's even vaguer... what are these files???? come on, igve us omethign to work with!!! you try takign your car to a garage and just saying... it's not working, and walk off....
3 - your mount point is wherever you want it, that's the file that defines it. base level. usually you shoudl use a directory in /mnt/